Part 3/11:
As part of their standard routine, the captain conducted an exterior walk-around of the aircraft before takeoff. During this inspection, he failed to notice that the pitot tubes—essential devices for measuring airspeed—were still covered with protective caps. This oversight occurred amidst a breakdown in communication between ground crew and flight personnel regarding the removal of these covers, designed to protect against insects at the airport. This innocent yet grave mistake set the stage for disaster.